The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 2004
Filed:
Dec. 19, 2000
Applicant:
Inventors:
Antonio Alvarez Berenguer, Madrid, ES;
Francisco Javier Limpo Orozco, Madrid, ES;
Bernardo Enrique Del Valle Álvarez, Madrid, ES;
Manuel Hidalgo Martín, Madrid, ES;
Assignee:
Tolsa, S.A., Madrid, ES;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 2/410 ;
U.S. Cl.
CPC ...
C04B 2/410 ;
Abstract
A water retaining additive for conglomerate building materials, free of cellulose-like derivatives, that comprises at least a rheological grade clay, preferably sepiolite, and a modified natural gum such as guar gum, as well as conglomerate compositions that contain the additive, as well as the use of the additive for different constructions materials comprised of gypsum and special mortars are described.